0007

Author: AkifhanIlgaz

rust/0007-reverse-integer.rs

@@ -0,0 +1,22 @@
+use std::i32::{MAX, MIN};
+
+impl Solution {
+    pub fn reverse(x: i32) -> i32 {
+        let mut res = 0;
+        let mut x = x;
+        while x != 0 {
+            let digit = x % 10;
+            x /= 10;
+
+            if res > MAX / 10 || (res == MAX / 10 && digit > MAX % 10) {
+                return 0;
+            }
+            if res < MIN / 10 || (res == MIN / 10 && digit < MIN % 10) {
+                return 0;
+            }
+
+            res = (res * 10) + digit;
+        }
+        res
+    }
+}